# 数据类型

"""整数"""
"""
var_int = 3
print(var_int)
print(type(var_int))

var_a = 3
var_b = 5

# 两个数进行交换
print(f"var_a = {var_a}")
print(f"var_b = {var_b}")

#交换
var_c = var_b
var_b = var_a
var_a = var_c

print(f"var_a = {var_a}")
print(f"var_b = {var_b}")
"""
"""浮点型"""
"""
float_a = 3.1415926
print(f"float_a = {float_a}")
print(f"type(float_a) ={type(float_a)}")

float_b = 2/5
print(f"float_a = {float_b}")
"""

"""字符串"""
"""
# 整个程序的核心都在做一件事，就是怎么拼接字符串
str_a = "hello~world"
print(f"str_a = {str_a}")
print(f"type(str_a) ={type(str_a)}")
"""
"""布尔类型"""
"""
bool_true = True
bool_false = False
print(f"bool_true = {bool_true}")
print(f"type(bool_true) ={type(bool_true)}")
print(f"bool_false = {bool_false}")
print(f"type(bool_false) ={type(bool_false)}")
"""

"""空值"""
"""
none_value =None
print(f"none_value = {none_value}")
print(f"type(none_value) ={type(none_value)}")
"""